| Year | 1925 |
| Bore x Stroke | 68 x 68 mm |
| Capacity | 494 cc / 30.1 cu in. |
| Clutch | Single plate saucer spring, dry |
| Compression Ratio | 6.2:1 |
| Cooling System | Air cooled |
| Engine | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated, OHV |
| Frame | Twin loop tubular frame |
| Front Brakes | ∅150mm Drum |
| Front Suspension | Twin cantilever spring |
| Front Tyre | 26 x 3.00" |
| Fuel Capacity | 14 liters / 3.6 USgal |
| Gear Ratio | 1st 2.50 / 2nd 1.50 / 3rd 1.08:1 |
| Ignition | Bosch magneto ignition |
| Induction | 1 x BMW Spezial three valve ∅26 mm |
| Max Power | 11.9 kW / 16 hp @ 4000 rpm |
| Rear Brakes | Block brake |
| Rear Suspension | Rigid, spring loaded saddle |
| Rear Tyre | 26 x 3.00" |
| Starting | Kick |
| Transmission / Drive | 3 Speed |
| Wet-Weight | 134 kg / 295 lbs |
